Merge branch '6.2' into 6.3

* 6.2:
  [Cache] fix trying to load Memcached before checking we can
  add missing variable
  [Notifier] Make `TransportTestCase` data providers static
  Fix PHPUnit 9.6 deprecations
  [Notifier] Add missing use statement
  [Security] fix compat with security-core v6
  use proper methods to assert exception messages contain certain strings
  Fix tests
  replace usages of the deprecated PHPUnit getMockClass() method
  [gha] Fix high-deps to run with Symfony 6+
  Fix PHPDoc (wrong order)

Author: nicolas-grekas

Tests/Style/SymfonyStyleTest.php

@@ -151,7 +151,7 @@ public function testCreateTableWithoutConsoleOutput()
         $style = new SymfonyStyle($input, $output);
 
         $this->expectException(RuntimeException::class);
-        $this->expectDeprecationMessage('Output should be an instance of "Symfony\Component\Console\Output\ConsoleSectionOutput"');
+        $this->expectExceptionMessage('Output should be an instance of "Symfony\Component\Console\Output\ConsoleSectionOutput"');
 
         $style->createTable()->appendRow(['row']);
     }